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题目:
选择题
构成工序的要素之一是()。
- A. 同一套夹具
- B. 同一台机床
- C. 同一把刀具
- D. 同一个加工表面
答案:
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在国际上被称为“黑茶”的有:()。
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柴油机压缩比高,因而NOx是主要有害排放物。
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登岛后住宿位置的选择应考虑()。
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以下正确的服务措辞有哪一个()。
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下列古代时辰与现在时间对应的关系中,正确的有()。
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关于高层建筑采暖设计热负荷的叙述,错误的是()
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人参入汤剂的用法是()。
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展览会永恒的主题是()。
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Questions 26 to 30 are based on the following passage. Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light” beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet. In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts: for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight,” says York Onnen, program director of the President’s Council on Physical Fitness and Sports. Still, exercise’s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight. If you have been sedentary (极少活动的) and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year’s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight. “Even exercise professionals concede half a point here” (Line 3, Para. 2) means “They ()”.
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地理信息系统设计要求满足的三个基本要求是:()。